Deputy Coroner Teri Tatalovich-Rossi said the girl was struck on the tracks behind school around 1 p.m.

Channel 4 Action News' Sheldon Ingram reported that Donnadio was a cheerleader and was active in other school organizations.

Her mother is an employee in the school cafeteria, and she was notified of her daughter's death by the Big Beaver Falls Area School District superintendent with police.

An autopsy will be performed Saturday.

This note was posted on the school district's website: "Due to the tragic event that occurred today, the Beaver Falls High School will be open at 9:30 a.m. Saturday morning. Grief counseling will be available and all are welcome."